Single polarization picosecond fiber MOPA power scaled to beyond 500 W
Single polarization picosecond fiber MOPA power scaled to beyond 500 W
We demonstrate a gain-switched diode-seeded, ytterbium-doped fiber based master oscillator power amplifier (MOPA) system, capable of delivering 2.4µJ, 35ps pulses at a repetition frequency of 215MHz in a single-polarization, close to diffraction limited beam. We are aware that the corresponding average power of > 500W is a record for such a MOPA system. Further pulse energy scaling was limited primarily by the onset of nonlinear effects such as self-phase modulation and stimulated Raman scattering which led to a compromised pulse quality at higher peak powers (> 70kW).
Teh, Peh Siong
ec22f853-00e2-42a7-9e68-8b1c5eee1271
Alam, Shaif-ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Lewis, Richard J.
788a5861-595b-4961-9c74-359305328d2e
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
6 June 2014
Teh, Peh Siong
ec22f853-00e2-42a7-9e68-8b1c5eee1271
Alam, Shaif-ul
2b6bdbe5-ddcc-4a88-9057-299360b93435
Lewis, Richard J.
788a5861-595b-4961-9c74-359305328d2e
Richardson, David J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Teh, Peh Siong, Alam, Shaif-ul, Lewis, Richard J. and Richardson, David J.
(2014)
Single polarization picosecond fiber MOPA power scaled to beyond 500 W.
Laser Physics Letters, 11 (8), [85103].
(doi:10.1088/1612-2011/11/8/085103).
Abstract
We demonstrate a gain-switched diode-seeded, ytterbium-doped fiber based master oscillator power amplifier (MOPA) system, capable of delivering 2.4µJ, 35ps pulses at a repetition frequency of 215MHz in a single-polarization, close to diffraction limited beam. We are aware that the corresponding average power of > 500W is a record for such a MOPA system. Further pulse energy scaling was limited primarily by the onset of nonlinear effects such as self-phase modulation and stimulated Raman scattering which led to a compromised pulse quality at higher peak powers (> 70kW).
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Accepted/In Press date: 19 May 2014
Published date: 6 June 2014
Organisations:
Optoelectronics Research Centre
Identifiers
Local EPrints ID: 378510
URI: http://eprints.soton.ac.uk/id/eprint/378510
ISSN: 1612-2011
PURE UUID: e38687da-2a47-491a-b91b-0e3cd1e23d8d
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Date deposited: 30 Jun 2015 13:55
Last modified: 15 Mar 2024 02:41
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Author:
Peh Siong Teh
Author:
Richard J. Lewis
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